linux-kernel - drivers/parport/procfs.c:267:18-28: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) (fwd)

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Message-ID: <alpine.DEB.2.22.394.2411022204280.15958@hadrien>
Date: Sat, 2 Nov 2024 22:05:24 +0100 (CET)
From: Julia Lawall <julia.lawall@...ia.fr>
To: Joel Granados <j.granados@...sung.com>
cc: Luis Chamberlain <mcgrof@...nel.org>, linux-kernel@...r.kernel.org, 
    oe-kbuild-all@...ts.linux.dev
Subject: drivers/parport/procfs.c:267:18-28: WARNING use flexible-array member
 instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays)
 (fwd)

If device_dir is meant to be a flexible array, use [] instead or [1].

julia

---------- Forwarded message ----------
Date: Sun, 3 Nov 2024 04:56:55 +0800
From: kernel test robot <lkp@...el.com>
To: oe-kbuild@...ts.linux.dev
Cc: lkp@...el.com, Julia Lawall <julia.lawall@...ia.fr>
Subject: drivers/parport/procfs.c:267:18-28: WARNING use flexible-array member
    instead
    (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-
    and-one-element-arrays)

BCC: lkp@...el.com
CC: oe-kbuild-all@...ts.linux.dev
CC: linux-kernel@...r.kernel.org
TO: Joel Granados <j.granados@...sung.com>
CC: Luis Chamberlain <mcgrof@...nel.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   11066801dd4b7c4d75fce65c812723a80c1481ae
commit: 0829381e481ab2760086cc88090f70e761e4fcc2 parport: Remove the now superfluous sentinel element from ctl_table array
date:   1 year, 1 month ago
:::::: branch date: 19 hours ago
:::::: commit date: 1 year, 1 month ago
config: x86_64-randconfig-102-20241102 (https://download.01.org/0day-ci/archive/20241103/202411030437.OYnKHsPA-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Reported-by: Julia Lawall <julia.lawall@...ia.fr>
| Closes: https://lore.kernel.org/r/202411030437.OYnKHsPA-lkp@intel.com/

cocci warnings: (new ones prefixed by >>)
>> drivers/parport/procfs.c:267:18-28: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays)
   drivers/parport/procfs.c:364:18-28: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays)

vim +267 drivers/parport/procfs.c

^1da177e4c3f41 Linus Torvalds 2005-04-16  257
^1da177e4c3f41 Linus Torvalds 2005-04-16  258
^1da177e4c3f41 Linus Torvalds 2005-04-16  259  struct parport_sysctl_table {
37e9981e33e4d3 Joel Granados  2023-06-16  260  	struct ctl_table_header *port_header;
37e9981e33e4d3 Joel Granados  2023-06-16  261  	struct ctl_table_header *devices_header;
0829381e481ab2 Joel Granados  2023-10-02  262  #ifdef CONFIG_PARPORT_1284
0829381e481ab2 Joel Granados  2023-10-02  263  	struct ctl_table vars[10];
0829381e481ab2 Joel Granados  2023-10-02  264  #else
0829381e481ab2 Joel Granados  2023-10-02  265  	struct ctl_table vars[5];
0829381e481ab2 Joel Granados  2023-10-02  266  #endif /* IEEE 1284 support */
0829381e481ab2 Joel Granados  2023-10-02 @267  	struct ctl_table device_dir[1];
^1da177e4c3f41 Linus Torvalds 2005-04-16  268  };
^1da177e4c3f41 Linus Torvalds 2005-04-16  269

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki